include/SDL_stdinc.h
author Marius Gripsgard <marius@ubports.com>
Sat, 13 Jan 2018 01:58:11 +0100
changeset 11826 13d922b387db
parent 11811 5d94cb6b24d3
permissions -rw-r--r--
Mir: Handle close window events
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
     4 
     5   This software is provided 'as-is', without any express or implied
     6   warranty.  In no event will the authors be held liable for any damages
     7   arising from the use of this software.
     8 
     9   Permission is granted to anyone to use this software for any purpose,
    10   including commercial applications, and to alter it and redistribute it
    11   freely, subject to the following restrictions:
    12 
    13   1. The origin of this software must not be misrepresented; you must not
    14      claim that you wrote the original software. If you use this software
    15      in a product, an acknowledgment in the product documentation would be
    16      appreciated but is not required.
    17   2. Altered source versions must be plainly marked as such, and must not be
    18      misrepresented as being the original software.
    19   3. This notice may not be removed or altered from any source distribution.
    20 */
    21 
    22 /**
    23  *  \file SDL_stdinc.h
    24  *
    25  *  This is a general header that includes C language support.
    26  */
    27 
    28 #ifndef SDL_stdinc_h_
    29 #define SDL_stdinc_h_
    30 
    31 #include "SDL_config.h"
    32 
    33 #ifdef HAVE_SYS_TYPES_H
    34 #include <sys/types.h>
    35 #endif
    36 #ifdef HAVE_STDIO_H
    37 #include <stdio.h>
    38 #endif
    39 #if defined(STDC_HEADERS)
    40 # include <stdlib.h>
    41 # include <stddef.h>
    42 # include <stdarg.h>
    43 #else
    44 # if defined(HAVE_STDLIB_H)
    45 #  include <stdlib.h>
    46 # elif defined(HAVE_MALLOC_H)
    47 #  include <malloc.h>
    48 # endif
    49 # if defined(HAVE_STDDEF_H)
    50 #  include <stddef.h>
    51 # endif
    52 # if defined(HAVE_STDARG_H)
    53 #  include <stdarg.h>
    54 # endif
    55 #endif
    56 #ifdef HAVE_STRING_H
    57 # if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
    58 #  include <memory.h>
    59 # endif
    60 # include <string.h>
    61 #endif
    62 #ifdef HAVE_STRINGS_H
    63 # include <strings.h>
    64 #endif
    65 #ifdef HAVE_WCHAR_H
    66 # include <wchar.h>
    67 #endif
    68 #if defined(HAVE_INTTYPES_H)
    69 # include <inttypes.h>
    70 #elif defined(HAVE_STDINT_H)
    71 # include <stdint.h>
    72 #endif
    73 #ifdef HAVE_CTYPE_H
    74 # include <ctype.h>
    75 #endif
    76 #ifdef HAVE_MATH_H
    77 # if defined(__WINRT__)
    78 /* Defining _USE_MATH_DEFINES is required to get M_PI to be defined on
    79    WinRT.  See http://msdn.microsoft.com/en-us/library/4hwaceh6.aspx
    80    for more information.
    81 */
    82 #  define _USE_MATH_DEFINES
    83 # endif
    84 # include <math.h>
    85 #endif
    86 #ifdef HAVE_FLOAT_H
    87 # include <float.h>
    88 #endif
    89 
    90 /**
    91  *  The number of elements in an array.
    92  */
    93 #define SDL_arraysize(array)    (sizeof(array)/sizeof(array[0]))
    94 #define SDL_TABLESIZE(table)    SDL_arraysize(table)
    95 
    96 /**
    97  *  Macro useful for building other macros with strings in them
    98  *
    99  *  e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n")
   100  */
   101 #define SDL_STRINGIFY_ARG(arg)  #arg
   102 
   103 /**
   104  *  \name Cast operators
   105  *
   106  *  Use proper C++ casts when compiled as C++ to be compatible with the option
   107  *  -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above).
   108  */
   109 /* @{ */
   110 #ifdef __cplusplus
   111 #define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
   112 #define SDL_static_cast(type, expression) static_cast<type>(expression)
   113 #define SDL_const_cast(type, expression) const_cast<type>(expression)
   114 #else
   115 #define SDL_reinterpret_cast(type, expression) ((type)(expression))
   116 #define SDL_static_cast(type, expression) ((type)(expression))
   117 #define SDL_const_cast(type, expression) ((type)(expression))
   118 #endif
   119 /* @} *//* Cast operators */
   120 
   121 /* Define a four character code as a Uint32 */
   122 #define SDL_FOURCC(A, B, C, D) \
   123     ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
   124      (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
   125      (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
   126      (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))
   127 
   128 /**
   129  *  \name Basic data types
   130  */
   131 /* @{ */
   132 
   133 #ifdef __CC_ARM
   134 /* ARM's compiler throws warnings if we use an enum: like "SDL_bool x = a < b;" */
   135 #define SDL_FALSE 0
   136 #define SDL_TRUE 1
   137 typedef int SDL_bool;
   138 #else
   139 typedef enum
   140 {
   141     SDL_FALSE = 0,
   142     SDL_TRUE = 1
   143 } SDL_bool;
   144 #endif
   145 
   146 /**
   147  * \brief A signed 8-bit integer type.
   148  */
   149 #define SDL_MAX_SINT8   ((Sint8)0x7F)           /* 127 */
   150 #define SDL_MIN_SINT8   ((Sint8)(~0x7F))        /* -128 */
   151 typedef int8_t Sint8;
   152 /**
   153  * \brief An unsigned 8-bit integer type.
   154  */
   155 #define SDL_MAX_UINT8   ((Uint8)0xFF)           /* 255 */
   156 #define SDL_MIN_UINT8   ((Uint8)0x00)           /* 0 */
   157 typedef uint8_t Uint8;
   158 /**
   159  * \brief A signed 16-bit integer type.
   160  */
   161 #define SDL_MAX_SINT16  ((Sint16)0x7FFF)        /* 32767 */
   162 #define SDL_MIN_SINT16  ((Sint16)(~0x7FFF))     /* -32768 */
   163 typedef int16_t Sint16;
   164 /**
   165  * \brief An unsigned 16-bit integer type.
   166  */
   167 #define SDL_MAX_UINT16  ((Uint16)0xFFFF)        /* 65535 */
   168 #define SDL_MIN_UINT16  ((Uint16)0x0000)        /* 0 */
   169 typedef uint16_t Uint16;
   170 /**
   171  * \brief A signed 32-bit integer type.
   172  */
   173 #define SDL_MAX_SINT32  ((Sint32)0x7FFFFFFF)    /* 2147483647 */
   174 #define SDL_MIN_SINT32  ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */
   175 typedef int32_t Sint32;
   176 /**
   177  * \brief An unsigned 32-bit integer type.
   178  */
   179 #define SDL_MAX_UINT32  ((Uint32)0xFFFFFFFFu)   /* 4294967295 */
   180 #define SDL_MIN_UINT32  ((Uint32)0x00000000)    /* 0 */
   181 typedef uint32_t Uint32;
   182 
   183 /**
   184  * \brief A signed 64-bit integer type.
   185  */
   186 #define SDL_MAX_SINT64  ((Sint64)0x7FFFFFFFFFFFFFFFll)      /* 9223372036854775807 */
   187 #define SDL_MIN_SINT64  ((Sint64)(~0x7FFFFFFFFFFFFFFFll))   /* -9223372036854775808 */
   188 typedef int64_t Sint64;
   189 /**
   190  * \brief An unsigned 64-bit integer type.
   191  */
   192 #define SDL_MAX_UINT64  ((Uint64)0xFFFFFFFFFFFFFFFFull)     /* 18446744073709551615 */
   193 #define SDL_MIN_UINT64  ((Uint64)(0x0000000000000000ull))   /* 0 */
   194 typedef uint64_t Uint64;
   195 
   196 /* @} *//* Basic data types */
   197 
   198 /* Make sure we have macros for printing 64 bit values.
   199  * <stdint.h> should define these but this is not true all platforms.
   200  * (for example win32) */
   201 #ifndef SDL_PRIs64
   202 #ifdef PRIs64
   203 #define SDL_PRIs64 PRIs64
   204 #elif defined(__WIN32__)
   205 #define SDL_PRIs64 "I64d"
   206 #elif defined(__LINUX__) && defined(__LP64__)
   207 #define SDL_PRIs64 "ld"
   208 #else
   209 #define SDL_PRIs64 "lld"
   210 #endif
   211 #endif
   212 #ifndef SDL_PRIu64
   213 #ifdef PRIu64
   214 #define SDL_PRIu64 PRIu64
   215 #elif defined(__WIN32__)
   216 #define SDL_PRIu64 "I64u"
   217 #elif defined(__LINUX__) && defined(__LP64__)
   218 #define SDL_PRIu64 "lu"
   219 #else
   220 #define SDL_PRIu64 "llu"
   221 #endif
   222 #endif
   223 #ifndef SDL_PRIx64
   224 #ifdef PRIx64
   225 #define SDL_PRIx64 PRIx64
   226 #elif defined(__WIN32__)
   227 #define SDL_PRIx64 "I64x"
   228 #elif defined(__LINUX__) && defined(__LP64__)
   229 #define SDL_PRIx64 "lx"
   230 #else
   231 #define SDL_PRIx64 "llx"
   232 #endif
   233 #endif
   234 #ifndef SDL_PRIX64
   235 #ifdef PRIX64
   236 #define SDL_PRIX64 PRIX64
   237 #elif defined(__WIN32__)
   238 #define SDL_PRIX64 "I64X"
   239 #elif defined(__LINUX__) && defined(__LP64__)
   240 #define SDL_PRIX64 "lX"
   241 #else
   242 #define SDL_PRIX64 "llX"
   243 #endif
   244 #endif
   245 
   246 /* Annotations to help code analysis tools */
   247 #ifdef SDL_DISABLE_ANALYZE_MACROS
   248 #define SDL_IN_BYTECAP(x)
   249 #define SDL_INOUT_Z_CAP(x)
   250 #define SDL_OUT_Z_CAP(x)
   251 #define SDL_OUT_CAP(x)
   252 #define SDL_OUT_BYTECAP(x)
   253 #define SDL_OUT_Z_BYTECAP(x)
   254 #define SDL_PRINTF_FORMAT_STRING
   255 #define SDL_SCANF_FORMAT_STRING
   256 #define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
   257 #define SDL_SCANF_VARARG_FUNC( fmtargnumber )
   258 #else
   259 #if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */
   260 #include <sal.h>
   261 
   262 #define SDL_IN_BYTECAP(x) _In_bytecount_(x)
   263 #define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x)
   264 #define SDL_OUT_Z_CAP(x) _Out_z_cap_(x)
   265 #define SDL_OUT_CAP(x) _Out_cap_(x)
   266 #define SDL_OUT_BYTECAP(x) _Out_bytecap_(x)
   267 #define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x)
   268 
   269 #define SDL_PRINTF_FORMAT_STRING _Printf_format_string_
   270 #define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_
   271 #else
   272 #define SDL_IN_BYTECAP(x)
   273 #define SDL_INOUT_Z_CAP(x)
   274 #define SDL_OUT_Z_CAP(x)
   275 #define SDL_OUT_CAP(x)
   276 #define SDL_OUT_BYTECAP(x)
   277 #define SDL_OUT_Z_BYTECAP(x)
   278 #define SDL_PRINTF_FORMAT_STRING
   279 #define SDL_SCANF_FORMAT_STRING
   280 #endif
   281 #if defined(__GNUC__)
   282 #define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 )))
   283 #define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 )))
   284 #else
   285 #define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
   286 #define SDL_SCANF_VARARG_FUNC( fmtargnumber )
   287 #endif
   288 #endif /* SDL_DISABLE_ANALYZE_MACROS */
   289 
   290 #define SDL_COMPILE_TIME_ASSERT(name, x)               \
   291        typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1]
   292 /** \cond */
   293 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   294 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
   295 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
   296 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
   297 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
   298 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
   299 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
   300 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
   301 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
   302 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   303 /** \endcond */
   304 
   305 /* Check to make sure enums are the size of ints, for structure packing.
   306    For both Watcom C/C++ and Borland C/C++ the compiler option that makes
   307    enums having the size of an int must be enabled.
   308    This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
   309 */
   310 
   311 /** \cond */
   312 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   313 #if !defined(__ANDROID__)
   314    /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
   315 typedef enum
   316 {
   317     DUMMY_ENUM_VALUE
   318 } SDL_DUMMY_ENUM;
   319 
   320 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
   321 #endif
   322 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   323 /** \endcond */
   324 
   325 #include "begin_code.h"
   326 /* Set up for C function definitions, even when using C++ */
   327 #ifdef __cplusplus
   328 extern "C" {
   329 #endif
   330 
   331 #if defined(HAVE_ALLOCA) && !defined(alloca)
   332 # if defined(HAVE_ALLOCA_H)
   333 #  include <alloca.h>
   334 # elif defined(__GNUC__)
   335 #  define alloca __builtin_alloca
   336 # elif defined(_MSC_VER)
   337 #  include <malloc.h>
   338 #  define alloca _alloca
   339 # elif defined(__WATCOMC__)
   340 #  include <malloc.h>
   341 # elif defined(__BORLANDC__)
   342 #  include <malloc.h>
   343 # elif defined(__DMC__)
   344 #  include <stdlib.h>
   345 # elif defined(__AIX__)
   346 #pragma alloca
   347 # elif defined(__MRC__)
   348 void *alloca(unsigned);
   349 # else
   350 char *alloca();
   351 # endif
   352 #endif
   353 #ifdef HAVE_ALLOCA
   354 #define SDL_stack_alloc(type, count)    (type*)alloca(sizeof(type)*(count))
   355 #define SDL_stack_free(data)
   356 #else
   357 #define SDL_stack_alloc(type, count)    (type*)SDL_malloc(sizeof(type)*(count))
   358 #define SDL_stack_free(data)            SDL_free(data)
   359 #endif
   360 
   361 extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
   362 extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
   363 extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
   364 extern DECLSPEC void SDLCALL SDL_free(void *mem);
   365 
   366 typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
   367 typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
   368 typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
   369 typedef void (SDLCALL *SDL_free_func)(void *mem);
   370 
   371 /**
   372  *  \brief Get the current set of SDL memory functions
   373  */
   374 extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
   375                                                     SDL_calloc_func *calloc_func,
   376                                                     SDL_realloc_func *realloc_func,
   377                                                     SDL_free_func *free_func);
   378 
   379 /**
   380  *  \brief Replace SDL's memory allocation functions with a custom set
   381  *
   382  *  \note If you are replacing SDL's memory functions, you should call
   383  *        SDL_GetNumAllocations() and be very careful if it returns non-zero.
   384  *        That means that your free function will be called with memory
   385  *        allocated by the previous memory allocation functions.
   386  */
   387 extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
   388                                                    SDL_calloc_func calloc_func,
   389                                                    SDL_realloc_func realloc_func,
   390                                                    SDL_free_func free_func);
   391 
   392 /**
   393  *  \brief Get the number of outstanding (unfreed) allocations
   394  */
   395 extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
   396 
   397 extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
   398 extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
   399 
   400 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (*compare) (const void *, const void *));
   401 
   402 extern DECLSPEC int SDLCALL SDL_abs(int x);
   403 
   404 /* !!! FIXME: these have side effects. You probably shouldn't use them. */
   405 /* !!! FIXME: Maybe we do forceinline functions of SDL_mini, SDL_minf, etc? */
   406 #define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
   407 #define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
   408 
   409 extern DECLSPEC int SDLCALL SDL_isdigit(int x);
   410 extern DECLSPEC int SDLCALL SDL_isspace(int x);
   411 extern DECLSPEC int SDLCALL SDL_toupper(int x);
   412 extern DECLSPEC int SDLCALL SDL_tolower(int x);
   413 
   414 extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
   415 
   416 #define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
   417 #define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
   418 
   419 /* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */
   420 SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords)
   421 {
   422 #if defined(__GNUC__) && defined(i386)
   423     int u0, u1, u2;
   424     __asm__ __volatile__ (
   425         "cld \n\t"
   426         "rep ; stosl \n\t"
   427         : "=&D" (u0), "=&a" (u1), "=&c" (u2)
   428         : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords))
   429         : "memory"
   430     );
   431 #else
   432     size_t _n = (dwords + 3) / 4;
   433     Uint32 *_p = SDL_static_cast(Uint32 *, dst);
   434     Uint32 _val = (val);
   435     if (dwords == 0)
   436         return;
   437     switch (dwords % 4)
   438     {
   439         case 0: do {    *_p++ = _val;   /* fallthrough */
   440         case 3:         *_p++ = _val;   /* fallthrough */
   441         case 2:         *_p++ = _val;   /* fallthrough */
   442         case 1:         *_p++ = _val;   /* fallthrough */
   443         } while ( --_n );
   444     }
   445 #endif
   446 }
   447 
   448 
   449 extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
   450 
   451 extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
   452 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
   453 
   454 extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
   455 extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
   456 extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
   457 extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2);
   458 
   459 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
   460 extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
   461 extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
   462 extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
   463 extern DECLSPEC char *SDLCALL SDL_strdup(const char *str);
   464 extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
   465 extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
   466 extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
   467 extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
   468 extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
   469 extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
   470 extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str);
   471 
   472 extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
   473 extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
   474 extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
   475 extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
   476 extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
   477 extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
   478 
   479 extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
   480 extern DECLSPEC double SDLCALL SDL_atof(const char *str);
   481 extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
   482 extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
   483 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
   484 extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
   485 extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
   486 
   487 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
   488 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
   489 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
   490 extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
   491 
   492 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
   493 extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, const char *fmt, va_list ap);
   494 extern DECLSPEC int SDLCALL SDL_snprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt, ... ) SDL_PRINTF_VARARG_FUNC(3);
   495 extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap);
   496 
   497 #ifndef HAVE_M_PI
   498 #ifndef M_PI
   499 #define M_PI    3.14159265358979323846264338327950288   /**< pi */
   500 #endif
   501 #endif
   502 
   503 extern DECLSPEC double SDLCALL SDL_acos(double x);
   504 extern DECLSPEC float SDLCALL SDL_acosf(float x);
   505 extern DECLSPEC double SDLCALL SDL_asin(double x);
   506 extern DECLSPEC float SDLCALL SDL_asinf(float x);
   507 extern DECLSPEC double SDLCALL SDL_atan(double x);
   508 extern DECLSPEC float SDLCALL SDL_atanf(float x);
   509 extern DECLSPEC double SDLCALL SDL_atan2(double x, double y);
   510 extern DECLSPEC float SDLCALL SDL_atan2f(float x, float y);
   511 extern DECLSPEC double SDLCALL SDL_ceil(double x);
   512 extern DECLSPEC float SDLCALL SDL_ceilf(float x);
   513 extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
   514 extern DECLSPEC float SDLCALL SDL_copysignf(float x, float y);
   515 extern DECLSPEC double SDLCALL SDL_cos(double x);
   516 extern DECLSPEC float SDLCALL SDL_cosf(float x);
   517 extern DECLSPEC double SDLCALL SDL_fabs(double x);
   518 extern DECLSPEC float SDLCALL SDL_fabsf(float x);
   519 extern DECLSPEC double SDLCALL SDL_floor(double x);
   520 extern DECLSPEC float SDLCALL SDL_floorf(float x);
   521 extern DECLSPEC double SDLCALL SDL_fmod(double x, double y);
   522 extern DECLSPEC float SDLCALL SDL_fmodf(float x, float y);
   523 extern DECLSPEC double SDLCALL SDL_log(double x);
   524 extern DECLSPEC float SDLCALL SDL_logf(float x);
   525 extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
   526 extern DECLSPEC float SDLCALL SDL_powf(float x, float y);
   527 extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
   528 extern DECLSPEC float SDLCALL SDL_scalbnf(float x, int n);
   529 extern DECLSPEC double SDLCALL SDL_sin(double x);
   530 extern DECLSPEC float SDLCALL SDL_sinf(float x);
   531 extern DECLSPEC double SDLCALL SDL_sqrt(double x);
   532 extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
   533 extern DECLSPEC double SDLCALL SDL_tan(double x);
   534 extern DECLSPEC float SDLCALL SDL_tanf(float x);
   535 
   536 /* The SDL implementation of iconv() returns these error codes */
   537 #define SDL_ICONV_ERROR     (size_t)-1
   538 #define SDL_ICONV_E2BIG     (size_t)-2
   539 #define SDL_ICONV_EILSEQ    (size_t)-3
   540 #define SDL_ICONV_EINVAL    (size_t)-4
   541 
   542 /* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
   543 typedef struct _SDL_iconv_t *SDL_iconv_t;
   544 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
   545                                                    const char *fromcode);
   546 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
   547 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
   548                                          size_t * inbytesleft, char **outbuf,
   549                                          size_t * outbytesleft);
   550 /**
   551  *  This function converts a string between encodings in one pass, returning a
   552  *  string that must be freed with SDL_free() or NULL on error.
   553  */
   554 extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
   555                                                const char *fromcode,
   556                                                const char *inbuf,
   557                                                size_t inbytesleft);
   558 #define SDL_iconv_utf8_locale(S)    SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
   559 #define SDL_iconv_utf8_ucs2(S)      (Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
   560 #define SDL_iconv_utf8_ucs4(S)      (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
   561 
   562 /* force builds using Clang's static analysis tools to use literal C runtime
   563    here, since there are possibly tests that are ineffective otherwise. */
   564 #if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
   565 #define SDL_malloc malloc
   566 #define SDL_calloc calloc
   567 #define SDL_realloc realloc
   568 #define SDL_free free
   569 #define SDL_memset memset
   570 #define SDL_memcpy memcpy
   571 #define SDL_memmove memmove
   572 #define SDL_memcmp memcmp
   573 #define SDL_strlen strlen
   574 #define SDL_strlcpy strlcpy
   575 #define SDL_strlcat strlcat
   576 #define SDL_strdup strdup
   577 #define SDL_strchr strchr
   578 #define SDL_strrchr strrchr
   579 #define SDL_strstr strstr
   580 #define SDL_strcmp strcmp
   581 #define SDL_strncmp strncmp
   582 #define SDL_strcasecmp strcasecmp
   583 #define SDL_strncasecmp strncasecmp
   584 #define SDL_sscanf sscanf
   585 #define SDL_vsscanf vsscanf
   586 #define SDL_snprintf snprintf
   587 #define SDL_vsnprintf vsnprintf
   588 #endif
   589 
   590 SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords)
   591 {
   592     return SDL_memcpy(dst, src, dwords * 4);
   593 }
   594 
   595 /* Ends C function definitions when using C++ */
   596 #ifdef __cplusplus
   597 }
   598 #endif
   599 #include "close_code.h"
   600 
   601 #endif /* SDL_stdinc_h_ */
   602 
   603 /* vi: set ts=4 sw=4 expandtab: */